TEM-tomography of FAU-zeolite crystals containing Pt-clusters
(1996) In Ultramicroscopy 62(4). p.81-277- Abstract
A method for preparing ultrathin sections (- 20 nm) of inorganic solids has been developed using ultramicrotomy of resin-embedded crystal fragments. Undamaged crystals, oriented along a crystallographic direction, could be imaged with transmission electron microscopy (TEM) at a resolution better than 0.5 nm. The true internal structure of the crystals could be investigated by imaging the second in a series of at least three consecutive ultrathin sections. Such TEM-tomography proved that Pt-ion exchanged FAU zeolite crystals, after reduction and oxidation, are occupied internally and randomly of large platinum clusters mainly in the {111-twin planes. TEM-tomography could be useful in man made nanostructures like semiconductors, epitaxial... (More)
A method for preparing ultrathin sections (- 20 nm) of inorganic solids has been developed using ultramicrotomy of resin-embedded crystal fragments. Undamaged crystals, oriented along a crystallographic direction, could be imaged with transmission electron microscopy (TEM) at a resolution better than 0.5 nm. The true internal structure of the crystals could be investigated by imaging the second in a series of at least three consecutive ultrathin sections. Such TEM-tomography proved that Pt-ion exchanged FAU zeolite crystals, after reduction and oxidation, are occupied internally and randomly of large platinum clusters mainly in the {111-twin planes. TEM-tomography could be useful in man made nanostructures like semiconductors, epitaxial thin films, hard metal coatings, ceramics, catalysts, and biomaterials.
(Less)
- author
- Bovin, J O LU ; Alfredsson, V LU ; Karlsson, G ; Carlsson, A LU ; Blum, Z and Terasaki, O
- organization
- publishing date
- 1996-03
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Ultramicroscopy
- volume
- 62
- issue
- 4
- pages
- 5 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:0030111118
- pmid:22666910
- ISSN
- 0304-3991
- DOI
- 10.1016/0304-3991(96)00002-2
- language
- English
- LU publication?
- yes
- id
- a0b620ea-2b75-49b1-bff8-b8ca0afc85ab
- date added to LUP
- 2019-05-29 08:49:32
- date last changed
- 2024-10-02 02:39:23
@article{a0b620ea-2b75-49b1-bff8-b8ca0afc85ab, abstract = {{<p>A method for preparing ultrathin sections (- 20 nm) of inorganic solids has been developed using ultramicrotomy of resin-embedded crystal fragments. Undamaged crystals, oriented along a crystallographic direction, could be imaged with transmission electron microscopy (TEM) at a resolution better than 0.5 nm. The true internal structure of the crystals could be investigated by imaging the second in a series of at least three consecutive ultrathin sections. Such TEM-tomography proved that Pt-ion exchanged FAU zeolite crystals, after reduction and oxidation, are occupied internally and randomly of large platinum clusters mainly in the {111-twin planes. TEM-tomography could be useful in man made nanostructures like semiconductors, epitaxial thin films, hard metal coatings, ceramics, catalysts, and biomaterials.</p>}}, author = {{Bovin, J O and Alfredsson, V and Karlsson, G and Carlsson, A and Blum, Z and Terasaki, O}}, issn = {{0304-3991}}, language = {{eng}}, number = {{4}}, pages = {{81--277}}, publisher = {{Elsevier}}, series = {{Ultramicroscopy}}, title = {{TEM-tomography of FAU-zeolite crystals containing Pt-clusters}}, url = {{http://dx.doi.org/10.1016/0304-3991(96)00002-2}}, doi = {{10.1016/0304-3991(96)00002-2}}, volume = {{62}}, year = {{1996}}, }